7i92 setup help
31 Oct 2016 22:23 #82291
by PCW
Its possible for the 7I92 to emulate any parallel port configuration, but if you have MX4660 hardware,
you would want to use the a MX4660 config and the hardware step generators and PWM generator
which will already be assigned to the proper I/O pins.
This makes the hal file different from a parallel port hal file since different components are used and the way
the hardware components connect to the I/O pins is determined by the FPGA configuration, not in software
Replied by PCW on topic 7i92 setup help
I have two parallel ports coming from my MosChip 9815. Is there any firmware for the 7i92 that sets the pins/ports to match a generic parallel ports; is this even possible? I currently have the 7i92_MX4660x2D.bit firmware loaded.
Its possible for the 7I92 to emulate any parallel port configuration, but if you have MX4660 hardware,
you would want to use the a MX4660 config and the hardware step generators and PWM generator
which will already be assigned to the proper I/O pins.
This makes the hal file different from a parallel port hal file since different components are used and the way
the hardware components connect to the I/O pins is determined by the FPGA configuration, not in software
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01 Nov 2016 10:23 #82302
by andypugh
Assuming you have the software package for the 7i92
www.mesanet.com/software/parallel/7i92.zip
If you look in configs/hostmot2 you will find a bunch of .bit files. Your most likely one is
7i92_MX3660x2D
You can find how the pins are allocated in that bitfile by extracting configs/hostmot2/source/hostmot2 to find the PIN_MX3660x2D_34.vhd file, which determines the pinout of the firmware:
The relevant section looks like this:
If you wire the BoB to look like that, then the 7i92 with that firmware should slot straight in. (with HAL changes, you need to redirect nets like "x-position axis.0.motor-pos-cmd stepgen.0.position-cmd" into "x-position axis.0.motor-pos-cmd hm2_7i92.0.stepgen.00.position-cmd"
Replied by andypugh on topic 7i92 setup help
I have two parallel ports coming from my MosChip 9815. Is there any firmware for the 7i92 that sets the pins/ports to match a generic parallel ports; is this even possible?
Assuming you have the software package for the 7i92
www.mesanet.com/software/parallel/7i92.zip
If you look in configs/hostmot2 you will find a bunch of .bit files. Your most likely one is
7i92_MX3660x2D
You can find how the pins are allocated in that bitfile by extracting configs/hostmot2/source/hostmot2 to find the PIN_MX3660x2D_34.vhd file, which determines the pinout of the firmware:
The relevant section looks like this:
-- Base func sec unit sec func sec pin -- external DB25
IOPortTag & x"00" & NullTag & NullPin, -- I/O 00 PIN 1 Output 2
IOPortTag & x"00" & PWMTag & PWMAOutPin, -- I/O 01 PIN 14 Spindle DAC PWM
IOPortTag & x"00" & StepGenTag & StepGenStepPin, -- I/O 02 PIN 2 X Step
IOPortTag & x"00" & NullTag & NullPin, -- I/O 03 PIN 15 Fault in
IOPortTag & x"00" & StepGenTag & StepGenDirPin, -- I/O 04 PIN 3 X Dir
IOPortTag & x"03" & StepGenTag & StepGenStepPin, -- I/O 05 PIN 16 Charge pump stepgen
IOPortTag & x"01" & StepGenTag & StepGenStepPin, -- I/O 06 PIN 4 Y Step
IOPortTag & x"00" & NullTag & NullPin, -- I/O 07 PIN 17 Output 1
IOPortTag & x"01" & StepGenTag & StepGenDirPin, -- I/O 08 PIN 5 Y Dir
IOPortTag & x"02" & StepGenTag & StepGenStepPin, -- I/O 09 PIN 6 Z Step
IOPortTag & x"02" & StepGenTag & StepGenDirPin, -- I/O 10 PIN 7 Z Dir
IOPortTag & x"00" & NullTag & NullPin, -- I/O 11 PIN 8 Output 3
IOPortTag & x"00" & NullTag & NullPin, -- I/O 12 PIN 9 Output 4
IOPortTag & x"00" & QCountTag & QCountQAPin, -- I/O 13 PIN 10 Input 1 / Quadrature A
IOPortTag & x"00" & QCountTag & QCountQBPin, -- I/O 14 PIN 11 Input 2 / Quadrature B
IOPortTag & x"00" & QCountTag & QCountIDXPin, -- I/O 15 PIN 12 Input 3 / Quadrature Index
IOPortTag & x"00" & NullTag & NullPin, -- I/O 16 PIN 13 Input 4If you wire the BoB to look like that, then the 7i92 with that firmware should slot straight in. (with HAL changes, you need to redirect nets like "x-position axis.0.motor-pos-cmd stepgen.0.position-cmd" into "x-position axis.0.motor-pos-cmd hm2_7i92.0.stepgen.00.position-cmd"
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28 Oct 2019 07:37 #148963
by unlessou32
Replied by unlessou32 on topic 7i92 setup help
I have similar question about your topic, i just get 2 nema 23 stepper motor,
www.oyostepper.com/goods-65-Nema-23-Step...57x41mm-4-Wires.html
Today i have start my cnc project.
www.oyostepper.com/goods-65-Nema-23-Step...57x41mm-4-Wires.html
Today i have start my cnc project.
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